Computer Engineering and Applications ›› 2019, Vol. 55 ›› Issue (24): 265-270.DOI: 10.3778/j.issn.1002-8331.1810-0338

Previous Articles    

Extracting Objects from Interactive Point-Cloud in 3D Environment

FU Min, ZHANG Jianglong, LIU Peigang   

  1. 1.Sinopec Petroleum Engineering Corporation, Dongying, Shandong 257000, China
    2.College of Computer & Communication Engineering, China University of Petroleum, Qingdao, Shandong 266580, China
  • Online:2019-12-15 Published:2019-12-11

三维环境下交互式点云对象提取方法

傅敏,张江龙,刘培刚   

  1. 1.中石化石油工程设计有限公司,山东 东营 257000
    2.中国石油大学(华东) 计算机与通信工程学院,山东 青岛 266580

Abstract: To extract complex objects from massive disordered point-cloud data, the distribution range of objects is delineated to extract data of the objects by human-computer interaction in three-dimensional visualization environment. Plane view in three-dimensional is used to express the location and distribution of objects in point-cloud visually. Outsourcing polygons dividing objects are made  artificially in plane view by means of 3D interactive technology. Objects are extracted from original point-cloud data according to the outsourcing polygons, and it is simplified by the effectivegrid method. The method is well applied to extract objects from site point-cloud data with 410 millions points.

Key words: disordered point-cloud, 3D visulization, interactive segmentation, effective grid method

摘要: 针对海量无序点云数据中的复杂对象提取问题,利用三维可视化环境中的人机交互功能,划定对象分布范围以提取对象数据。采用三维平面视图直观表达点云中对象的位置及分布;借助三维交互技术,在平面视图中人工划分对象外包多边形;根据外包多边形从原始点云数据中提取对象点云,使用有效网格法进行化简。以4.1亿个数据点的场站点云为例进行应用,取得良好效果。

关键词: 无序点云, 三维可视化, 交互分割, 有效网格法